Trying to condense all my issues into one post so please forgive me if it’s wordy- My motor is a 2010 Opti 75 Sn 1B791154 with maybe 200 hours on it. I bought the boat used in 2020, and at the time it only had 75 hours on it, no idea how many I’ve put on but honestly 200 total is probably generous. When I got it, i had it looked over by a mech who said everything was mechanical sound, but the fuel system needed redone. Fuel lines had disintegrated and completely clogged the fuel pump, so first thing I did along with all of the recommended maintenance in the sticky, was to replace all fuel lines, completely rebuilt pump, changed plugs, filters, and ran some power tune through it. Well the motor always seems to run great, except for frequently stalling out at idle. Never had an issue at anything above idle speed, but especially the first couple times starting it during a day of fishing, it will start up great, and then within maybe 30s to a minute sounds like it’s bogging down and dies, almost like letting the clutch off in a manual without giving it enough gas. Usually i can hear it about to die and shift into gear and it’ll kick back up but it’s strange in how it doesn’t seem to happen all the time, or even every time. I’ve talked to Don some about it and most recently, we left it at needing to change spark plugs again, the usual annual maintenance, and then inspect for a loose belt. I will through it out there that I have changed spark plugs properly gapped once a year, and the problem has never gone away, some days it seems better than others, and there are occasions it won’t die once all day. Well last night I got around to inspecting the belt, and it appears to be in great shape, no fraying or cracking and still quite tight. I did however notice quite a bit of rust color dust all over the top of the air compressor as well as the fins in the alternator. Is this something that could be related to my issue or is that normal wear and tear from the belt? On a side note, last week I had a solid alarm which I believe to be an overheat alarm, boat was still peeing but I immediately shut it off. After fishing for maybe an hour, it started and we ran it with no alarms, but then once more when getting ready to load the boat, it kicked the alarm on. Both times that it happened, the boat was at idle, one time for sure was after running WOT for maybe 15 min, and then after coming off plane and idling for a minute or two it kicked on. The second time may have been a similar scenario, or it could’ve been right after start up before gassing it to get on plane, honestly can’t remember because I had just caught my first striper and was caught up in the moment. Upon reading that a solid alarm is an overheat, it occurred to me that even though I’ve replaced my water pump annually, I had been forgetting to clean the water strainer(with the exception of the very first time I changed stuff). I’m hoping that it’s simply a clogged strainer, but I don’t fish very much dirty water that I’d expect it to be full of grass or something. Could this overheat alarm be tied in with the stalling issue? I doubt it because it’s had the stall issue since I’ve owned it, and last week was the first time I’ve ever had an alarm. Like I said I’ve been back and forth with Don in the DMs, but I thought maybe I should move it to a public post where someone else with a similar problem could find the solution they need. Feel free to check my post history, I have a couple documenting the history of the problem.
Thanks!!
Reply With Quote
Originally Posted by EuropeanAM
